200121011012 has 12 divisors (see below), whose sum is σ = 377151136236. Its totient is φ = 92363543520.

The previous prime is 200121011003. The next prime is 200121011023. The reversal of 200121011012 is 210110121002.

It can be written as a sum of positive squares in 2 ways, for example, as 117282961156 + 82838049856 = 342466^2 + 287816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200121010984 and 200121011002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924240439 + ... + 1924240542.

It is an arithmetic number, because the mean of its divisors is an integer number (31429261353).

Almost surely, 2^200121011012 is an apocalyptic number.

It is an amenable number.

200121011012 is a deficient number, since it is larger than the sum of its proper divisors (177030125224).

200121011012 is a wasteful number, since it uses less digits than its factorization.

200121011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848480998 (or 3848480996 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200121011012 its reverse (210110121002), we get a palindrome (410231132014).

The spelling of 200121011012 in words is "two hundred billion, one hundred twenty-one million, eleven thousand, twelve".